Summary statistics for a_c6_39 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c6_39 | 1,037 -242283.6 718441.4 -1.15e+07 787473 by Jean Roth , jroth@nber.org , 21 Apr 2018